Drop support for db upgrade from before 1.0

- define jupyterhub oauth client during token app

jupyterhub/app.py

@@ -214,6 +214,8 @@ class NewToken(Application):
         hub = JupyterHub(parent=self)
         hub.load_config_file(hub.config_file)
         hub.init_db()
+        hub.init_hub()
+        hub.init_oauth()
 
         def init_users():
             loop = asyncio.new_event_loop()

jupyterhub/tests/populate_db.py

@@ -62,8 +62,6 @@ def populate_db(url):
         db.commit()
 
     # create some oauth objects
-    if jupyterhub.version_info >= (0, 8):
-        # create oauth client
     client = orm.OAuthClient(identifier='oauth-client')
     db.add(client)
     db.commit()
@@ -83,7 +81,6 @@ def populate_db(url):
     db.commit()
 
     # set some timestamps added in 0.9
-    if jupyterhub.version_info >= (0, 9):
     assert user.created
     assert admin.created
     # set last_activity

jupyterhub/tests/test_db.py

@@ -36,7 +36,7 @@ def generate_old_db(env_dir, hub_version, db_url):
     check_call([env_py, populate_db, db_url])
 
 
-@pytest.mark.parametrize('hub_version', ['0.7.2', '0.8.1', '0.9.4'])
+@pytest.mark.parametrize('hub_version', ['1.0.0', "1.2.2", "1.3.0"])
 async def test_upgrade(tmpdir, hub_version):
     db_url = os.getenv('JUPYTERHUB_TEST_DB_URL')
     if db_url: